Furnace foe consuming smoke



(No Model.) 2 Sheets-Sheet 1. A. J. SIMMONS. FURNAGB POB. GONSUMING SMOKE.. No. 257,092. Patented"Apr.25, 1882.

(No Model.) 2 Sheets-Sheet 2..

A.` J. SIMMONS.

EURNACE POR UONSUMING SMOKE.

No. 257,092. Patented Apr.25, 1882.

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WITNESSES h IIJVVEJVZOR wwe@ Unirse STATES PATENT OFFICE;

ALONZO J.,SIMMONS, OF INDIANAPOLIS, INDIANA.

FURNACE Fon consum-ING sMoKE.

SPECIFICATION forming part of Letters Patent Nof 257,092, dated April 25, 1882. Application filed January 25, 1882. (No model.)

To all whom it may concern: i

. Beit known that I, ALoNzo J. SIMMONS, of

i l Indianapolis, in the county of Marion and and other Products of Combustion and I do y hereby declare that the following is a full, clear, and exact description of the invention, which will enable others skilled in the art to which it appertains to make and use the same,

reference being had to the accompanying drawings, which form a part of this speciiication.

Myinvention relates to means for arresting and consuming gasesA and other products of combustion. The object of it is to catch the unconsumed particles of fuel, together with the heavier gases as they come under Athe petticoat-pipe or strike the bottom of the smoke- 4arch and reconvey them back upon the burning fuel, after having been commingled with steam, or steam and air.

To this end my invention consists in means for conveying the gases and small particles of carbon from the smoke-arch and beneath the petticoat-pipe to a drum or chamber 10- cated in front of the fire-box, or at any other convenient place from which the fire-box may be reached, whence the unconsumed particles and heavy gases are conveyed to orforced upon the fire.

It further consists in a drum located in front of the fire-box, or -at any other suitable place from which the fire-box may be reached, and having pipes leading therefrom to the smokearch and beneath the petticoat-pipe, and from the top of the drum to a series of vacuum-injectors connected to a pipe leading from the steam-dome.

It further 'consists in details of construction that will be hereinafter more fully set forth in the specication and claims, and pointed out in the accompanying drawings, in which- Figure l is a vertical section of my device, in which the products of combustion and gases are directed into the furnace from the receiving-drum by a tube leading from the drum to the furnace; Fig.v 2, a section of same, showing the means for drawing in the exterior air, the conducting-tube being dispensed with; Fig. 3, a plan view taken on the line rv, Fig.

1;.and Fig. Li, a detail view of one of the injectors.

Referring more particularly to they drawings, A indicates the boiler; D,the steaindome; B, the ues. y

Opening into the smoke-arch, and beneath the petticoat-pipe, is a pipe, vF, which extends downward to a drum, G, whichfor'convenience is located in front of the fire-box, although it is obvious that it may be placed in any other suitable place from which the tire'box may be reached, without departing from the spirit ot' my invention. Below this pipe F, and within the drum, is a vacuum-injector, G, having the orifice o in its lower part, opening through the side of thedrum to the outer air. This injector is fully described and claimed in another application now pending, and it will be sufficient for the purpose here to state that the steam from the dome is admitted to 011e part of the injector by the annular space f," while the gases and products of combustion are admitted or drawn through the opening u in the lower part, and the steam and said products of combustion are commingled beyond the apex of .the lower part. The action of the steam admitted in this way creates a high vacuum in the drum, and this draws down rapidly and with great force the gases and particles of unconsumed` carbon, Svc., as they approach the smoke-arch and petticoat-pipe on their way from the fines to the smoke-arch P. As they are drawn downward into the drum the tendency of the heavier gases and unconsumed particles is to fall toward the bottom of the drum, and here they are met by theaction of steam drawn from one branch of pipe leading from the steam-dome D, and they are then and there commingled with the steam and outer air, and thus commingled are forced onto the burning fuel to be consumed. The lighter gases rising in the drum are carried oft' by pipe F' and brought through cross-joints or connections g' to a series of injectors, g, where they are commingled with steam and forced upon the burning fuel. This is shown more fully in Fig. 2. The action just described goes on continuously.

It is well known that monoxide gases are heavier than any other gaseous product of combastion. Now, as the carbon monoxides pass through the ues they fall to the under side,

and as they are forced out of the ilues the tendency is to fall tothe under sideof the smokearch with the heavier unconsumed particles, Where they are drawn into pipe F and conveyed to drum G and commingled with steam and air, thus taking hydrogen and oxygen, the latter assistingin combustion, theformer forming carbides of hydrogen. Consequently these and other gases and the particles of unconsumedl fuel are by conversion again consumed.l There are many advantages thus obtained. The great saving of fuel is the most important factor. By this means we are enabled to ob,- tain a rapid and perfect combustion of the fuel, for if a lump oi. coal nbe burned slowly the minimum mechanical force is obtained therefrom, but if burned quickly the maximum force is obtained.

The cross-joints g have screw-plugs p, by

'means of which the connections can be-clea-n ed' when necessary. Y Y

The shield N in the top of thedrunipreventsany particles of carbon from enteringpipe F with the lighter gases. By my device I: cause not only a rapid combustion of the fuel, but save those particles and gases before lostv through the smoke-stack. 4

Having' thus described my invention, whatI claim as new, and desire to secure by'Letters Patent, is

l. The method of consumin g particles-of carbon and gases arising from combustion of fuel in furnaces, which consists in arresting saidl unconsumed products as they come under the petticoatpipe, then conductn g them to a drum or receptacle provided with a vacuum injector or injectors in its lower end and a pipe at its admitted, and a shield for preventing particles of carbon from entering said. upper pipe, sub-- stantially as set forth. f

3. In combination witha furnace, av drum-f,-

Gr', provided with avacuum-injectony, pipeI,

entering the lire-box, pipe F, leadingy to eh-esmoke-arch-beneaththe pettieoa-t-pipe, pipeE, leadin gfrom the'steam-dome, andpipellg'prm vided with a series ofinjectors, g, throughI which-` the products offconbustiom areforced upon the burningfuel, substantially asandfory the purpose set forth.

In tfzst-imonyfthat` I claim the'foregojingfasimy vown Iv have'hereto` affixed my-signaturevin presence-of twowit-nesses.

v ALONZOJ. SIMMONSB Witnesses-z M. F. ROBINSON, D. B. B'Ro'oKs. 

